Portion of headgear



FIG. 1 is a perspective view of headgear for use with a respiratory mask assembly;

FIG. 2 is a front view thereof; and,

FIG. 3 is a rear view thereof.

A portion of headgear shown in FIGS. 1–3 is shown in its pre-use condition.

Where included, broken lines showing environment or structure are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a portion of headgear, as shown and described. 